Automatic recorder.



No. 639,l80. Patented Dec; l2, I899. F. W. MARTIN.

AUTOMATIC RECORDER.

. (Application filed June 9, 1899.) (No Model.) 2 sheets sheel 1.

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No. 639,l80. Patented Dec. [2, I899.

F. W. MARTIN.

AUTOMATIC RECORDER.

(Application filed June 9, 1899.) (No Model.) 2 Sheets-Sheet 2.

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UNITED STATES PATENT @rrrcn.

FREDERICK IV. MARTIN, O F HAMILTON, CANADA.

AUTOMATIC RECORDER.

SPECIFICATION forming part of Letters Patent No. 639,180, dated December899.

Application filed June 9,1899. Serial No. 719,923. (No model.)

To aZZ whom it may concern:

Be it known that I, FREDERICK W. MAR- TIN, a citizen of Canada, residingat Hamilton, in the county of Wentworth, in the Province of Ontario,Dominion of Canada, have invented new and useful Improvements inAutomatic Recorders, of which the following is a specification.

My invention relates to automatic recorders for registering or plottingload curves, such as the daily output of an electric light or powerstation.

The objects of my invention are, first, to record one or more curves onthe same sheet by using one or more pens and different-colored inks,such as the load of an incandescent switchboard, power-board, or anyother supply; second, to provide a machine which shall be a check on theswitchboard attendant; third, to supply the machine with a long ribbonof paper from a roll with sufficient paper to last several days, and,fourth, to afiford facilities for the running of the machinecontinuously for several days by means of a clock connection, so as notto want attention except from the outside. I attain these objects by themechanism illustrated in the accompanying drawings, in which- Figure 1is a front elevation of the machine, showing the two rollers partiallycovered by the ribbonpaper,which is divided off into horizontal parallellines and transverse parallel lines, each set of lines of equal distanceapart, said rollers capable of revolving by means of mechanism connectedto a clock. Fig. 2 is an end elevation through the right-hand end of theroller, showing the two adjustable marking-pens and one of thetension-rollers. Fig. 3 is an enlarged sectional view of an inkmarkingpen detached.

Similar letters and numerals refer to similar parts throughout theseveral views.

In the drawings, the ribbon-paper roller is indicated by A, theribbon-feed roll by B, and the right-angle-line-divisioned paper by O.This ribbon-roller A is driven by the clock D by means of a system ofgear-wheels commencing with the clocks central spur-wheel E, which gearsinto a spur-wheel F, which drives the small spur-wheel H on transverseshaft J, and thence the miter or bevel wheel K on same shaft. Said wheelK drives a similar wheel M on shaft N, and consequently the pinion-wheelO on same shaft, said pinion driving a rear spur-wheel P, which drivesthe spur-wheel R on the shaft or spindle S of the roller A. Thisparticular system of gearwheels I do not especially claim, as a somewhatdifierent system, comprising more or less wheels and of various sizes,may be employed to attain the desired result of revolving once in agiven period of time the large ribbon-roller by means of clockconnection. It is intended that this roller A shall revolve once in aperiod of twenty-four hours, more or less, according to requirements.This paper may be cut off as desired when passing through the rear partof the machine. The roller A and the feed-roll B are supported by theend frames '1, and when the roller A is revolved the lined-ribbon isdrawn from the feed-roll B.

The marking-pens U and V for plotting various curves on the ribbon O indifferentcolored inks mark the ribbon automatically as the roller Arevolves and are capable of traveling on the ribbon when actuated bymeans of an outer hand-wheel, as Lwhich revolves the screw Y, and hencethe ink-regulating pen U, longitudinally. The ink-regulating pen V isactuated in the same manner and by similar means on its longitudinalscrew Z. These ink-regulating pens are pivoted at 2 and at 3 to theirrespective hubs eland 5, and to prevent the same from turning whenoperated upon by their respective hand-wheels the said hubs are slottedin order to slide on their respective rigid guides 6 and 7, which extendfrom end to end of the end frame T and T. These pens have each an indexindicating-finger 9 and 10, respectively, to point to divisionednumerals and parts on the 1011- gitudinal bars 12 and 13, which extendfrom end to end of the frame. The said numerals and divisioned parts orlines on the bar 12 denote volts, and the divisioned numerals and lineson the bar 13 denotes ampere. To these volts and amperes the lingers Jand 10 point when operated by their respective handwheels \V, eachseparately at any given time of the clock D, or both together, as thecase may be. The colored marks on the ribbonpaper 0, made by these pensU and V, and the indications of the fingers 9 and 10 on their respectivebars 12 and 13 are clearly seen by the fact of the hinged and lockedbowed front part l-l of the outer casing being made of glass.

Immediatelyabove the pens referred to and on the ribbon on the roller Aa tension roller or rollers 16 are employed to assist in retaining theribbon in smooth position on the roller. These tension-rollers arecapable of being slid on their longitudinal and rigid bar 17, which,with the guide-bars 6 and 7, act as stays and braces for the ends T andT of the frame in which the said rollers revolve. The feed-roll B has atension-spring 18, and the pens V and U are supplied with smalltension-weights 19 and 20, respectively.

The outer casing, the glass front part of which is hinged at 22, may bemade of various shapes and proportions and of chaste design to suit therequirements of the objects set forth.

The pens referred to are supplied with openings 24, as seen in theenlarged view, Fig. 3, of the drawings, for purposes of filling withink, and also a headed screw 26, that the same when operated mayregulate the How of ink through the small aperture 27 through the point28 of the pen. These pens may be used with or Without the ink-regulator.

This automatic recording-maehine is very useful for plotting the loadcurves of the different outputs of a station. The pens work over a scaleof amperes and use different-colored ink, which makes them distinct andeasy to trace. One can be plotting an incandescent while the other onemay be plotting a power load. Besides being a reference for the officeand to have on file, it is a check on the switchboard attendant, as thecharts move over a roller which is geared to a clock and keeps thecharts moving at the same rate as time. The pens, resting on the chart,record the load and can be moved from left to right, according to thevariations. The charts may be laid off into fifteen-minute readings,unless otherwise wanted. The attendant cannot record the readings, as issometimes done, by jotting down several readings from memory. Therecorder carries a supply of charts, which are on a roller under thelarge roller and are passed out at the rear in the most approved way.Considering that the casing of this recorder can be locked up by thefore man or superintendent, the attendant can only by permission getaccess to refill the pens, which will run about a week withoutrefilling.

Various changes in the form, proportion, and minor details ofmyinvention maybe resorted to without departing from the spirit andscope thereof. Forinstance, one pen only may be used to mark thesuitably-right-alr gled lined ribbon-paper, or more than two, as shown,may be used and the ribbon-rollers arranged suitably to operatetherewith.

hat I claim as my invention, and desire to secure by Letters Patent, is-

1. An automatic recorder for plotting load curves as the output ofelectric light and power, comprising a paper-ribbon roller in asuit-able easing, a clock attached to said easing and connected toagear-wheel at one end of said roller to revolve the same once in aperiod of time and continuously, a paperfeed roll revolved by saidroller to supply right-angled-line-divisioned paper to the same,inking-pens pivoted to independent hubs, and capable of longitudinalmovement on longitudinal screws operated by outer handwheels, guides forsaid hubs, pointers on said inking-pens and longitudinal indexbarsbetween said pens and pointers, as described.

2. An automatic recorder as described, comprising a paper-ribbon roller,aelock connected to the end wheel of said roller to revolve the sameonce in a period of time and continuously, a paper-ribbon-feed rollrevolved by said roller, inking-pens pivoted to hubs on independentlongitudinal screws, pointers on said inking-pens, longitudinalindex-bars between said pens and pointers, longitudinal guides for saidhubs, outer handwheels to revolve said screws, and tension rollers onthe said paper-ribbon roller.

Signed at Hamilton, Canada, May 31, 189i).

FREDERICK \V. MARTIN.

In presence of- JOHN H. HENDRY, B. E. HERALD.

